CLOSE RANGE PHOTOGRAMMETRY IN VOLUME COMPUTING

A study was conducted to investigate the performance of close range photogrammetry applied to volume calculations on a natural hill. The method used overlapping converging photos recorded with either a single mobile camera and fixed reference points in the field of view or two cameras fixed relative to a common axis. The accuracy of the volume calculated was directly proportional to the presentations of the land surface. The accuracy of the representation of land surface was dependent on the number of specific X,Y,Z coordinate points, point distributions, and interpolation methods. The ground control points (GCPs) in the photogrammetric method were used to calculate the position and orientation of each camera in a stereo pair of photographs. It was also demonstrated that close range photogrammetric measurements had the potential to be integrated with 3D modeling and reverse engineering processes.